Signoe



STATES PATENT OFFICE.

NITEI EPHRAIM HOVARD PERRIGO, OF MANCHESTER, NEV HAMPSHIRE, AS-

SIGNOR, BY MESNE ASSIGNMENTS, TO SAID F. H. PERRIGO AND JOHN COMFORT, OF SAME PLACE.

BOBBiN-REAM ER.

SPECIPICA'IIQN forming part of Letters Patent No. 348,412, dated August 31, 1886.

Application filed April JG, 1886. Serial No. 200,154. (No model.)

To all whom it may concern: done, the grooved collar is to be moved Beit known that I, Ernnanr HOWARD PER- rearwardly upon the body 0, so as to grad- 55 RIGO, of Manchester, in the county of Hillsually force the reaming-cutter outwardly from borough, of theState of New Hampshire, have the blade and cause such cutter, in conseinvented a new and useful Improvement in quence of its being revolved with the spindle Bobbin'Reamers; and I do hereby declare the within the bobbin, to cut or enlarge the bob same to be described in the following specifibin at the mouth of its bore, as maybe re- 60 cation and represented in the accompanying quired. The collar 0 is to be moved endwise drawings, of which by mechanism operated by a pedal or treadle. to Figures 1 and 2 are side elevations, and Fig. In Fig. 4: the chamber or part to be pro 3a longitudinal section, ofa reamer of my in duced by the reamer is represented at i, it vention, the nature of which is defined in the being the portion of the bore of the bobbin 65 claim hereinafter presented. Fig. 4 is a loninto which the spinning-spindle is first introgitudinal section of a bobbin, for the reaming duced, but which, while the bobbin isin place [5 of which the said tool or reamer is designed. on the spindle, is not in contact with such In such drawings, A denotes a spindle, whose spindle.

blade, a Z), is designed to fit the bore of the It is very necessary to have the bore of the 70 bobbin, the body portion 0 of such spindle bobbin exactly concentric Avith the periphbeing cylindrical. It is recessed or grooved cry or outer surface of the bobbin, otherwise lengthwise to receive areaming tool or cutter, the bobbin, as well as the spindle, is apt to B, which is a lever formed in longitudinal wabble or run untrue while the spindle is section, as represented in Fig. 3, and is fulin rapid revolution. 75 crumed to the body, the pivot or fulcrum be- My improved reamer causes the chamber ing shown at (Z. The tail of the lever rests produced by it to have its axis in that of the upon a spiral spring, d, arranged as shown in bobbin, and, consequently, when the bobbin is the body 0. A grooved annulus or collar, C, subsequently placed on the spindle that holds encompasses and slides lengthwise upon the and revolves it while its external surface is 8 body 0, and serves when retracted to depress being turned down, the said surface when lin the rear arm of the cutter, and thereby force ished will be exactly concentric wilh the chain the front arm of such cutter outwardly. An bcr and bore of the bobbin.

adjustable or sliding gage, l), is arranged in I claima groove, 6, within the body 0, and is held in The hobbin-rcamer, substantially as de 85 place by a set-screw, f, that goes through a scribed, consisting of the spindle having its ring, 9, which encompasses and is fastened to cylindrical body provided with a blade exj. the body, and is arranged as represented. tending therefrom and to fitthc bore of a bob- This gage projects somewhat beyond the front bin to be reamed, the two adjustable gages arend ofthe body. Anothersuch gage, E, is also ranged to slide in grooves made lengthwise 9 similarly arranged in and applied to the body in the body, and provided with a ring encomc, and is held in position therein by asctscrew, passing the body and fixed thereto and having h, that screws into the ring g. This latter set-screws screwedintoit,ihesaidring,against gage is to determine the distance to which the the shanks ol' the gages, and the rcamiuglevcr collar 0 is to be moved rearwardly, the gage fnlcrnmcd to the body and arranged in a 95 D being for deteri'nining lhedistance to which groove therein and having a spring to force the cutter is to extend into the bobbin. its longer arm outwardly, and a sliding collar In using the reamcr it is to be inserted and" encompassing the body and serving to force fixed in the arbor of a lathe, endwisethcreof, the said arm inwardly, all being for use and and to be revolved by such arbor, the bobbin to operate, in manner and for the purpose as 10C to be reamed being held in the hand of an .set forth.

operator. The blade of the reamer havin i been inserted in the bore of the bobbin, such EPHRATM HOVARD PLRRIGO' bobbin is to be crowded toward the body of \Vitnesses: the reanier until brought up against the for- P. H. EDDY, ward end of the gage D. This having been R. B. TORREY. 

